<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">{{message}}<br/>{{haha}}</div>
<script src="../../project_practice/lunbotu/vue.js"></script>
<script>
  //let(变量)/const(常量)
  const app=new Vue({
    el:'#app' ,   //用于挂载要管理的元素
    data:{      //定义数据
      message:"你好啊！！阿杰！！",
        haha:"傻逼傻逼傻逼！！！"
    }
  })
</script>
</body>
</html>